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        QUY70D Overll Dimensio

      Code

      Description

      Specifications

      Unit

       

      Bucket capacity

      2.0-

      CBM

      A

      Boom length

      37

      mm

      α

      Boom angle

      50

      60

      °

      B

      Max. dumping height

      14900

      19700

      mm

      C

      Max. dumping radius

      23800

      21000

      mm

      D

      Max. digging radius

      29100

      27800

      mm

      E

      Depth for side cut

      14500

      13100

      mm

      F

      Depth for fa?ade cut

      19600

      18800

      mm

       

      Working weight

      72000

       

      Kg

       

      Average ground pressure

      0.916

       

      Kg / ㎡

      Hydraulic driving for travellingand rotation; Empty hook, mechanical reel and electrical system;

       

      Superstructure

      Power device
      Rated power:239±5%kw/2000rpm
      Max. torque:988±6%N.m/s≤1400rpm
      Fuel consumption rate ≤257+5%g/kw·h
      when demarcating:Apply altitude≤2000m
      Environmenttemperature of diesel engine:-35~+45°
      Capacity of fuel tank:250L
      Capacity of hydraulic oil tank:400L

      Hydraulic system
      Main system adopt general power varaiblesystem,
      this system is stepless adjusting variabledouble-piston pump, main reversing valveadopt load sensing multi-way valve, thisvalve has function of load feedback, whichmake performance institution in workingspeed be free from load change, also havegood jogglecharacteristic. independentslewing system is composed of a rationgear pump and a reversing valve withcushion function including ration motor,which can make slewing more stable.

      Control system
      Supply oil for operating system from asingle-unite gear pump through oil filter,two pilot handle and a two- unites pilotvalve control reversing valve' s every wayvalve group through pilot proportion outputto drive each element action. Settingvarious kinds of salety device in pilotsystem in order to ensure crane' s safeand reliable operation.

      Main winch and aux. winch
      Mechanical lifting, mechanical brake, with thefunction of the empty hook down.

      Main hoist winch
      Diameter of the drum:Φ 552mm
      Diameter of wire rope:Φ23. 5mm
      Length of wire rope:65m
      Max. rope speed:99m/s

      Aux. hoist winch
      Diameter of the drum:Φ552mm
      Diameter of wire rope:Φ23.5mm
      Length of wire rope:50m
      Max. rope speed:99m/s

      Boom derricking system
      The boom derricking system is driven bythe hydraulic variable plungermotorthrough the planetary reduction gear,operating dorricking handle can completethe action of boom hoist and falling andmake drum turn The wet- -disc brake isoften engaged.
      Diameter of the drum:Φ430mm
      Diameter of wire rope:Φ16mm
      Length of wire rope:150m
      Max. rope speed:61m/s

      Swing system
      The swing system provides 360°rotation,The swing unit is driven by hydraulic motorthrough planetary reduction gear.
      Swing speed:2.788r/min
      Two position lock.

      The cab
      The width of the cabin is'1080mm . The cabinis equipped with air- conditioner, heater,rear view mirror, wiper and stereo, In thecabin, there are large -screen electronicmonitorsandmomentlimiter,fireextinguisher. The chair can be adjusted.

      A-frame
      A-frame can be extended and retracted. Itshould be extended and raised whenworking. A-frame should be lowered whiletransport.

      Counterweight
      Counterweight is composed of Six pieces:a piece of 6.6T counterweight (1), a pieceof 2.15T counterweight (2), a piece of2.15T counterweight (3) , a piece of 1.9Tcounterweight(4),a pieceof1.76tcounterweight (5), total weight is 16.5t.

      Undercarriage


      Chassis
      Telescopic folding and steel- -welded frame andconnected with slewing support through bolts.

      Track rollers
      Each side has 10 track rollers. All track rollers areequipped with bushings and seals. They arecoated with lubricating oil.

      Track shoe
      The left and right crawlers have 118 track shoes.The width of track shoe is 762mm. The tension oftrack shoe can be adjusted by the hydraulic jack.Adjusting the shim makes the crawler in idealtension conditions.

      Crawler drive
      Independent hydraulic propel driver is built intoeach crawler side frame,. Each drive consists of ahydraulic motor propelling a drive sprocket through aplanetary reduction gear. Hydraulic motor andreduction gear are built into the crawler sideframe within the shoe width.

      Gradeability
      35% (20°)

      Travel speed
      0~1.29km/h


      The attachment


      Main chords are with high strength.

      Boom
      The insert section has the equal cross section.The top and foot have the variable cross sections.The boom is the lattice structure welded with steelpipes.
      Length of standard boom is13~ 31m

      Fixed jib

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        機械式挖掘機生產|20T挖掘機生產企業
        Fushun Hongqiao Construction Machinery Co., Ltd.
        Addr.: No.25 Changchun Str., Shuncheng District, Fushun City, Liaoning Province, China 113006
        Tel:+86-024-57641201 Fax:+86-024-57644168 Sales Manager:Zhao Liang Mobile:13841343456 Email:cnwajueji@126.com
        Website:
        m.55tt4.com(China excavator) website designing:and manufacturing of Internet business online:www.7113.com